Linux Device Drivers
Linux Device Drivers
The Radeon driver should work, but your 7640G is from Northern Islands. Verify firmware is installed (run locate -i aruba|grep firmware). Direct rendering is available via Mesa (r600), and VDPau can use mesa-vdpau-drivers (probably). There may also be options in mesa-vaapi or libva-vaapi, though that’s less relevant for NI chips. I typically compile drivers into the kernel with firmware, so you’ll need guidance on forcing the correct one. Check dmesg for messages about rejected files and accepted ones.